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physostomous

[fahy-sos-tuh-muh s]
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adjective Ichthyology.
  1. having the mouth and air bladder connected by an air duct.
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Compare physoclistous.

Origin of physostomous

First recorded in 1885–90; physo- + -stomous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for physostomous

physostomous

adjective
  1. (of fishes) having a duct connecting the air bladder to part of the alimentary canalCompare physoclistous
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Word Origin

C19: from Greek phusa bladder + -stomous, from stoma mouth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012